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Finding the Fourth Proportional to 136,358.60, 188,201.16 and 82,673.02

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Solution

The fourth proportional to 136,358.60, 188,201.16 and 82,673.02 is: 114,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,358.60 : 188,201.16 = 82,673.02 : x
  2. Step 2: Convert to fraction form
    136,358.60/188,201.16 = 82,673.02/x
  3. Step 3: Cross multiply
    136,358.60x = 188,201.16 × 82,673.02
  4. Step 4: Simplify right side
    136,358.60x = 15,559,156,910.33
  5. Step 5: Solve for x
    x = 15,559,156,910.33/136,358.60
  6. Step 6: Final answer
    x = 114,104.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.